quota: Implement quota format with 64-bit space and inode limits
So far the maximum quota space limit was 4TB. Apparently this isn't enough
for Lustre guys anymore. So implement new quota format which raises block
limits to 2^64 bytes. Also store number of inodes and inode limits in
64-bit variables as 2^32 files isn't that insanely high anymore.
The first version of the patch has been developed by Andrew Perepechko
<Andrew.Perepechko@Sun.COM>.
CC: Andrew.Perepechko@Sun.COM
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
index 353e78a..efc02eb 100644
--- a/fs/quota/Kconfig
+++ b/fs/quota/Kconfig
@@ -46,12 +46,14 @@
format say Y here.
config QFMT_V2
- tristate "Quota format v2 support"
+ tristate "Quota format vfsv0 and vfsv1 support"
depends on QUOTA
select QUOTA_TREE
help
- This quota format allows using quotas with 32-bit UIDs/GIDs. If you
- need this functionality say Y here.
+ This config option enables kernel support for vfsv0 and vfsv1 quota
+ formats. Both these formats support 32-bit UIDs/GIDs and vfsv1 format
+ also supports 64-bit inode and block quota limits. If you need this
+ functionality say Y here.
config QUOTACTL
bool